Developer note:
To work directly with the SVN version of the configuration, check out
http://svn.apache.org/repos/asf/forrest/trunk/tools/xxe/ into the
forrest folder in the XXE addon folder. Run
the build there to copy the DTDs

Install

Extract into your XXE user directory (e.g.
~/.xxe/addon/config) (only in version 1.3+ of this
config). For version 1.3+, this is the recommended installation
location, as it permits upgrading XXE without having to reinstall
this config

Note

This location is new for XXE 2.10, and is not tested with earlier
releases!